Low energy consumption and high extrusion output pvc-m pipe composition

A technology with low energy consumption and composition, applied in the direction of pipes, rigid pipes, pipes/pipe joints/fittings, etc., can solve the problems of high energy consumption, high extrusion output, high energy consumption, difficulty in extrusion of PVC-M pipes, etc. The effect of improved mechanical properties, high mechanical properties, good toughness

Active Publication Date: 2016-01-06
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: to overcome the deficiencies of the prior art, to provide a PVC-M pipe composition with low energy consumption and high extrusion output, the pipe produced by using this composition has good toughness and impact resistance. Solved the problem of difficult extrusion of PVC-M pipes and high energy consumption

Method used

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  • Low energy consumption and high extrusion output pvc-m pipe composition
  • Low energy consumption and high extrusion output pvc-m pipe composition
  • Low energy consumption and high extrusion output pvc-m pipe composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～12

[0021] Examples 1 to 12 are the proportioning components of the PVC-M pipe composition with low energy consumption and high extrusion output of the present invention, as shown in Table 1 and Table 2. The PVC resin used in Examples 1-12 is the PVCQS-1050P pipe special resin produced by Qilu Petrochemical Company, and its degree of polymerization is 1000. Wherein embodiment 3 is the best implementation mode.

[0022] Table 1 Embodiment 1~6 Low energy consumption and high extrusion output PVC-M pipe composition (by weight)

[0023]

[0024] Table 2 Embodiment 7-12 Low energy consumption and high extrusion output PVC-M pipe composition (by weight)

[0025]

[0026] The preparation method of embodiment 1~12, carry out as follows:

[0027] a) Put PVC resin, processed modified resin, heat stabilizer, toughener, hindered phenolic antioxidant, lubricant, filler, and colorant into a high-speed mixer for stirring and mixing, and the stirring speed of the high-speed mixer is 1000~...

Embodiment 2

[0058] Table 13 Example 2 Performance test typical value

[0059] project

technical indicators

Test results

0℃ drop weight impact test, TIR

≤5％

1％

Hydraulic test (ring stress 38MPa at 20°C, 1h)

No cracks, no leaks

No cracks, no leaks

Hydraulic test (60°C ring stress 10MPa, 1000h)

No cracks, no leaks

No cracks, no leaks

Vicat softening point

80℃

82℃

Longitudinal retraction

≤5％

2％

[0060] Table 14 is that the embodiment of the present invention 2 produces The PVC-M pipe material and comparative example 3 produced According to the comparative results of longitudinal shrinkage of PVC-M pipes, it can be seen that the extrusion speed of the composition pipe of the present invention is improved, but the longitudinal shrinkage is not increased, and all properties meet the requirements of pipe standards.

[0061] Table 14 Longitudinal shrinkage of impact-resistant PVC-M pipes

...

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Abstract

The invention belongs to the field of a polymer processing material, and mainly relates to a PVC-M (polyvinyl chloride) pipe composition with low energy consumption and high output capacity. The PVC-M pipe composition is prepared from the following components in parts by weight: 100 parts of PVC resin, 3-7 parts of processed modified resin, 4.5-8.0 parts of heat stabilizer, 6-12 parts of flexibilizer, 0.5-1.0 part of hindered phenol antioxidant, 1.0-2.0 parts of lubricating agent, 1-5 parts of filler, and 0-2 parts of coloring agent. A large-caliber pipe and a small-caliber pipe produced by the PVC-M pipe composition with low energy consumption and high output capacity disclosed by the invention have low extruder current and high pulling speed; and the problems of difficult extrusion, low yield and high energy consumption in the production process of the PVC-M pipe are solved.

Description

technical field [0001] The invention belongs to a PVC-M pipe composition with low energy consumption and high extrusion output, and belongs to the field of polymer processing materials. Background technique [0002] With the extensive use of PVC-U pipes, its brittle shortcomings are also exposed, which greatly limits its application in many fields that have certain requirements for impact. Therefore, in recent years, domestic PVC manufacturers have begun to produce high-impact polyvinyl chloride pipes (ie, PVC-M pipes). PVC-M pipes have excellent impact resistance while having the strength of PVC-U. At present, the impact modifiers used for PVC-M pipes in China are MBS, CPE, and impact-resistant ACR. However, the addition of a large amount of impact modifier increases the viscosity of the material system, making it more difficult to extrude PVC-M pipes, resulting in higher current and higher energy consumption during extrusion. In particular, the extrusion viscosity of MBS...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/06C08L25/12C08L51/00C08K13/02C08K3/26C08K5/09C08K5/01C08K3/22F16L9/12
Inventor 刘容德王晶张新华李静张桦贾小波刘浩桂俊杰孙培培
Owner CHINA PETROLEUM & CHEM CORP
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